Types of Satellites

- Overview

Satellites are categorized by their function and orbit, with common types including communication, navigation, earth observation, and scientific satellites. 

Their applications range from telecommunications and GPS to weather forecasting, climate monitoring, and space exploration, playing a crucial role in modern society. 

- Types of Satellites by Application 

• Communication satellites: Relay signals for television, radio, telephone, and internet services.
• Navigation satellites: Used to determine precise location and timing for GPS, a critical component of navigation systems on Earth.
• Earth observation satellites: Provide data for a wide range of applications, including weather forecasting, environmental monitoring, and disaster management.
• Scientific satellites: Used for both Earth science and space science. This includes astronomical satellites with telescopes that provide data on celestial objects and research satellites that study Earth's atmosphere, oceans, and climate.
• Reconnaissance satellites: Also known as "spy" satellites, they are used for military and intelligence purposes like surveillance.

- Types of Satellites by Orbit

• Low Earth Orbit (LEO): Satellites in this orbit are closer to Earth and are often used for Earth observation due to their high resolution.
• Medium Earth Orbit (MEO): This orbit is used for navigation satellite systems like GPS.
• Geostationary Orbit (GEO): Located over the equator, these satellites have an orbital period that matches Earth's rotation, making them appear stationary from a ground perspective. This is ideal for continuous communication and regional weather monitoring.
• Polar Orbit: These orbits pass over or near the planet's poles, allowing the satellite to observe the entire surface of the Earth as the planet rotates beneath it.

[More to come ...]